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首页> 外文期刊>Bioorganic and Medicinal Chemistry Letters >Syntheses of stable, synthetic diadenosine polyphosphate analogues using recombinant histidine-tagged lysyl tRNA synthetase (LysU)
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Syntheses of stable, synthetic diadenosine polyphosphate analogues using recombinant histidine-tagged lysyl tRNA synthetase (LysU)

机译:使用重组组氨酸标记的赖氨酰tRNA合成酶(LysU)合成稳定的合成腺苷多磷酸类似物

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摘要

Recombinant Escherichia coli lysyl-tRNA synthase (LysU) has been previously utilised in the production of stabile, synthetic diadenosine polyphosphate (ApnA) analogues. Here we report on the extended use of a new recombinant histidine residue-tagged LysU as a tool for highly controlled phosphatephosphate bond formation between nucleotides, avoiding the need for complex protecting group chemistries. Resulting high yielding tandem LysU-based biosynthetic-synthetic/synthetic-biosynthetic strategies emerge for the preparation of varieties of ApnA analogues directly from inexpensive natural nucleotides and nucleosides. Analogues so formed make a useful small library with which to probe ApnA activities in vitro and in vivo leading to the discovery of new, potentially potent biopharmaceuticals active against chronic pain and other chronic, high-burden disease states.
机译:重组大肠杆菌赖氨酰-tRNA合酶(LysU)先前已用于生产稳定的合成二磷酸腺苷多磷酸腺苷(ApnA)类似物。在这里,我们报告了新的重组组氨酸残基标记的LysU的广泛使用,作为在核苷酸之间高度可控的磷酸磷酸酯键形成的工具,从而无需使用复杂的保护基化学物质。由此产生的高产量串联的基于LysU的生物合成/合成/生物合成策略可直接从廉价的天然核苷酸和核苷制备各种ApnA类似物。如此形成的类似物成为有用的小型文库,可用于在体外和体内探查ApnA活性,从而导致发现了对慢性疼痛和其他慢性高负担疾病状态具有活性的新的,可能有效的生物药物。

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